Intercomparison of analytical methods for arsenic speciation in human urine. | Zendy

E.A. Crecelius | Zendy; Jerome Y. Yager | Zendy

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Intercomparison of analytical methods for arsenic speciation in human urine.

Author(s) -

E.A. Crecelius,

Jerome Y. Yager

Publication year - 1997

Publication title -

environmental health perspectives

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.257

H-Index - 282

eISSN - 1552-9924

pISSN - 0091-6765

DOI - 10.1289/ehp.97105650

Subject(s) - arsenic , urine , environmental chemistry , inorganic arsenic , genetic algorithm , biomonitoring , arsenobetaine , chemistry , biology , biochemistry , ecology , organic chemistry

An intercomparison exercise was conducted for the quantification of arsenic species in spiked human urine. The primary objective of the exercise was to determine the variance among laboratories in the analysis of arsenic species such as inorganic As (As+3 and As+5), monomethylarsonic acid (MMA), and dimethylarsinic acid (DMA). Laboratories that participated had previous experience with arsenic speciation analysis. The results of this interlaboratory comparison are encouraging. There is relatively good agreement on the concentrations of these arsenic species in urine at concentrations that are relevant to research on the metabolism of arsenic in humans and other mammals. Both the accuracy and precision are relatively poor for arsenic concentrations of less than about 5 micrograms/l.

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